Merge #3681

3681: std::max -> maximum r=Jupeyy a=def-

<!-- What is the motivation for the changes of this pull request -->

## Checklist

- [ ] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test if it works standalone, system.c especially
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: def <dennis@felsin9.de>

src/engine/shared/demo.cpp

@@ -529,7 +529,7 @@ void CDemoPlayer::ScanFile()
 	}
 
 	// copy all the frames to an array instead for fast access
-	m_pKeyFrames = (CKeyFrame *)calloc(std::max(m_Info.m_SeekablePoints, 1), sizeof(CKeyFrame));
+	m_pKeyFrames = (CKeyFrame *)calloc(maximum(m_Info.m_SeekablePoints, 1), sizeof(CKeyFrame));
 	for(pCurrentKey = pFirstKey, i = 0; pCurrentKey; pCurrentKey = pCurrentKey->m_pNext, i++)
 		m_pKeyFrames[i] = pCurrentKey->m_Frame;
 

src/game/editor/io.cpp

@@ -270,7 +270,7 @@ int CEditorMap::Save(class IStorage *pStorage, const char *pFileName)
 				Size += str_length(m_lSettings[i].m_aCommand) + 1;
 			}
 
-			char *pSettings = (char *)malloc(std::max(Size, 1));
+			char *pSettings = (char *)malloc(maximum(Size, 1));
 			char *pNext = pSettings;
 			for(int i = 0; i < m_lSettings.size(); i++)
 			{
@@ -536,7 +536,7 @@ int CEditorMap::Save(class IStorage *pStorage, const char *pFileName)
 
 	// save points
 	int TotalSize = sizeof(CEnvPoint) * PointCount;
-	CEnvPoint *pPoints = (CEnvPoint *)calloc(std::max(PointCount, 1), sizeof(*pPoints));
+	CEnvPoint *pPoints = (CEnvPoint *)calloc(maximum(PointCount, 1), sizeof(*pPoints));
 	PointCount = 0;
 
 	for(int e = 0; e < m_lEnvelopes.size(); e++)